lucassmith – https://www.micro-lube.com/what-is-grease-lubrication/

Grease lubrication is a method employed to reduce friction and protect machinery. It involves applying a semi-solid lubricant, called grease, to the moving parts of a system. The grease, typically composed of a base oil and thickening agents, adheres to the surfaces, forming a protective layer. This layer minimizes metal-to-metal contact, reduces wear and tear, and prolongs equipment lifespan.